<?php
/**
+ * Job queue base code
+ *
+ * @file
* @defgroup JobQueue JobQueue
*/
* Static functions
*------------------------------------------------------------------------*/
- /**
- * @deprecated use LinksUpdate::queueRecursiveJobs()
- */
- /**
- * static function queueLinksJobs( $titles ) {}
- */
-
/**
* Pop a job of a certain type. This tries less hard than pop() to
* actually find a job; it may be adversely affected by concurrent job
$namespace = $row->job_namespace;
$dbkey = $row->job_title;
$title = Title::makeTitleSafe( $namespace, $dbkey );
- $job = Job::factory( $row->job_cmd, $title, Job::extractBlob( $row->job_params ), $row->job_id );
+ $job = Job::factory( $row->job_cmd, $title, Job::extractBlob( $row->job_params ),
+ $row->job_id );
$dbw->delete( 'job', $job->insertFields(), __METHOD__ );
$dbw->commit();
return false;
}
}
- $offset = $row->job_id;
// Try to delete it from the master
$dbw = wfGetDB( DB_MASTER );
* @param $jobs array of Job objects
*/
static function batchInsert( $jobs ) {
- if( !count( $jobs ) ) {
+ if ( !count( $jobs ) ) {
return;
}
$dbw = wfGetDB( DB_MASTER );
$rows = array();
- foreach( $jobs as $job ) {
+ foreach ( $jobs as $job ) {
$rows[] = $job->insertFields();
if ( count( $rows ) >= 50 ) {
# Do a small transaction to avoid slave lag
$rows = array();
}
}
- if ( $rows ) {
+ if ( $rows ) { // last chunk
$dbw->begin();
$dbw->insert( 'job', $rows, __METHOD__, 'IGNORE' );
$dbw->commit();
}
+ wfIncrStats( 'job-insert', count( $jobs ) );
+ }
+
+ /**
+ * Insert a group of jobs into the queue.
+ *
+ * Same as batchInsert() but does not commit and can thus
+ * be rolled-back as part of a larger transaction. However,
+ * large batches of jobs can cause slave lag.
+ *
+ * @param $jobs array of Job objects
+ */
+ static function safeBatchInsert( $jobs ) {
+ if ( !count( $jobs ) ) {
+ return;
+ }
+ $dbw = wfGetDB( DB_MASTER );
+ $rows = array();
+ foreach ( $jobs as $job ) {
+ $rows[] = $job->insertFields();
+ if ( count( $rows ) >= 500 ) {
+ $dbw->insert( 'job', $rows, __METHOD__, 'IGNORE' );
+ $rows = array();
+ }
+ }
+ if ( $rows ) { // last chunk
+ $dbw->insert( 'job', $rows, __METHOD__, 'IGNORE' );
+ }
+ wfIncrStats( 'job-insert', count( $jobs ) );
}
/*-------------------------------------------------------------------------
/**
* Insert a single job into the queue.
+ * @return bool true on success
*/
function insert() {
$fields = $this->insertFields();
return;
}
}
- $dbw->insert( 'job', $fields, __METHOD__ );
+ return $dbw->insert( 'job', $fields, __METHOD__ );
}
protected function insertFields() {